Buggy code:
protected static final int K_ARRAY_CREATION = ( CompletionParser . COMPLETION_PARSER ) + 14 ; protected static final int K_UNARY_OPERATOR = ( CompletionParser . COMPLETION_PARSER ) + 15 ; protected static final int K_BINARY_OPERATOR = ( CompletionParser . COMPLETION_PARSER ) + 16 ; protected static final int K_ASSISGNMENT_OPERATOR = ( CompletionParser . COMPLETION_PARSER ) + 17 ; protected static final int K_CONDITIONAL_OPERATOR = ( CompletionParser . COMPLETION_PARSER ) + 18 ; protected static final int K_BETWEEN_IF_AND_RIGHT_PAREN = ( CompletionParser . COMPLETION_PARSER ) + 19 ; protected static final int K_BETWEEN_WHILE_AND_RIGHT_PAREN = ( CompletionParser . COMPLETION_PARSER ) + 20 ; protected static final int K_BETWEEN_FOR_AND_RIGHT_PAREN = ( CompletionParser . COMPLETION_PARSER ) + 21 ; protected static final int K_BETWEEN_SWITCH_AND_RIGHT_PAREN = ( CompletionParser . COMPLETION_PARSER ) + 22 ; protected static final int K_BETWEEN_SYNCHRONIZED_AND_RIGHT_PAREN = ( CompletionParser . COMPLETION_PARSER ) + 23 ; protected static final int K_INSIDE_ASSERT_STATEMENT = ( CompletionParser . COMPLETION_PARSER ) + 24 ; protected static final int K_SWITCH_LABEL = ( CompletionParser . COMPLETION_PARSER ) + 25 ; protected static final int K_BETWEEN_CASE_AND_COLON = ( CompletionParser . COMPLETION_PARSER ) + 26 ; protected static final int K_BETWEEN_DEFAULT_AND_COLON = ( CompletionParser . COMPLETION_PARSER ) + 27 ; protected static final int K_BETWEEN_LEFT_AND_RIGHT_BRACKET = ( CompletionParser . COMPLETION_PARSER ) + 28 ; public int cursorLocation ; public AstNode assistNodeParent ; static final int IF = 1 ; static final int TRY = 2 ; static final int CATCH = 3 ; static final int WHILE = 4 ; static final int SWITCH = 5 ; static final int FOR = 6 ; static final int DO = 7 ; static final int SYNCHRONIZED = 8 ; static final int DEFAULT = 1 ; static final int EXPLICIT_RECEIVER = 0 ; static final int NO_RECEIVER = - 1 ; static final int SUPER_RECEIVER = - 2 ; static final int NAME_RECEIVER = - 3 ; static final int ALLOCATION = - 4 ; static final int QUALIFIED_ALLOCATION = - 5 ; static final int QUESTION = 1 ; static final int COLON = 2 ; int invocationType ; int qualifier ; int lastModifiers = AccDefault ; int lastModifiersStart = - 1 ; int bracketDepth ; int canBeExplicitConstructor = CompletionParser . NO ; static final int NO = 0 ; static final int NEXTTOKEN = 1 ; static final int YES = 2 ; public CompletionParser ( ProblemReporter problemReporter ) { } public char [ ] assistIdentifier ( ) { } protected void attachOrphanCompletionNode ( ) { } private void buildMoreCompletionContext ( Expression expression ) { } public int bodyEnd ( AbstractMethodDeclaration method ) { } public int bodyEnd ( Initializer initializer ) { } private boolean checkCatchClause ( ) { } private boolean checkClassInstanceCreation ( ) { } private boolean checkClassLiteralAccess ( ) { if ( ( ( this . identifierLengthPtr ) >= 1 ) && ( ( this . previousToken ) == ( TerminalTokens . TokenNameDOT ) ) ) { int length ; if ( ( length = this . identifierLengthStack [ ( ( this . identifierLengthPtr ) - 1 ) ] ) < 0 ) { int dim = ( this . isAfterArrayType ( ) ) ? this . intStack [ ( ( this . intPtr ) -- ) ] : 0 ; SingleTypeReference typeRef = ( ( SingleTypeReference ) ( TypeReference . baseTypeReference ( ( - length ) , dim ) ) ) ; typeRef . sourceStart = this . intStack [ ( ( this . intPtr ) -- ) ] ; if ( dim == 0 ) { typeRef . sourceEnd = this . intStack [ ( ( this . intPtr ) -- ) ] ; } else { ( this . intPtr ) -- ; typeRef . sourceEnd = this . endPosition ; } char [ ] source = identifierStack [ identifierPtr ] ; long pos = this . identifierPositionStack [ ( ( this . identifierPtr ) -- ) ] ; ( this . identifierLengthPtr ) -- ; CompletionOnClassLiteralAccess access = new CompletionOnClassLiteralAccess ( pos , typeRef ) ; access . completionIdentifier = source ; ( this . identifierLengthPtr ) -- ; this . assistNode = access ; this . isOrphanCompletionNode = true ; return true ; } if ( isAfterArrayType ( ) ) { char [ ] source = identifierStack [ identifierPtr ] ; long pos = this . identifierPositionStack [ ( ( this . identifierPtr ) -- ) ] ; ( this . identifierLengthPtr ) -- ; <START_BUG> TypeReference typeRef = getTypeReference ( ( ( this . intPtr ) -- ) ) ; <END_BUG> CompletionOnClassLiteralAccess access = new CompletionOnClassLiteralAccess ( pos , typeRef ) ; access . completionIdentifier = source ; this . assistNode = access ; this . isOrphanCompletionNode = true ; return true ; } } return false ; } private boolean checkKeyword ( ) { } private boolean checkInstanceofKeyword ( ) { } private boolean checkInvocation ( ) { } private boolean checkMemberAccess ( ) { } private boolean checkNameCompletion ( ) { } private boolean checkRecoveredMethod ( ) { } private boolean checkRecoveredType ( ) { } public void completionIdentifierCheck ( ) { } protected void consumeArrayCreationExpressionWithInitializer ( ) { } protected void consumeArrayCreationExpressionWithoutInitializer ( ) { } protected void consumeArrayCreationHeader ( ) { } protected void consumeAssignment ( ) { } protected void consumeAssignmentOperator ( int pos ) { } protected void consumeBinaryExpression ( int op ) { } protected void consumeCaseLabel ( ) { } protected void consumeCastExpression ( ) { } protected void consumeCastExpressionLL1 ( ) { } protected void consumeClassBodyDeclaration ( ) { } protected void consumeClassBodyopt ( ) { } protected void consumeClassHeaderName ( ) { } protected void consumeClassHeaderExtends ( ) { } protected void consumeClassTypeElt ( ) { } protected void consumeConditionalExpression ( int op ) { } protected void consumeConstructorBody ( ) { } protected void consumeConstructorHeader ( ) { } protected void consumeConstructorHeaderName ( ) { } protected void consumeDefaultLabel ( ) { } protected void consumeDimWithOrWithOutExpr ( ) { }

Fix:
TypeReference typeRef = getTypeReference ( this . intStack [ ( ( this . intPtr ) -- ) ] ) ;